Vehicle feature recognition device based on public security video images in skynet engineering

Abstract

The invention provides a vehicle feature recognition device based on public security video images in skynet engineering. The device is characterized in that an image acquisition model is connected with a licence plate recognition model and a vehicle type recognition model respectively and is used for providing video frame images of moving vehicles; and the licence plate recognition model and the vehicle type recognition model are connected to a vehicle feature database server and store the feature parameters of licence plate information and vehicle type information recognized from the video frame images of the moving vehicles. The device has the following technical effects: videos are acquired in the places with complex public security such as main traffic thoroughfares, public security accesses, public gathering places, hotels and the like via the skynet engineering; video stream extraction frame by frame, licence plate positioning, licence plate segmentation, character recognition, moving vehicle outline extraction, vehicle edge density computation and decision tree based vehicle type recognition are carried out on the obtained public security video images, thus recognizing the feature parameters of licence plate information and vehicle type information; and the device has positive significance to further expansion and extension of urban public security prevention and control and urban comprehensive management tools.

Description

technical field [0001] The invention relates to a vehicle feature recognition device, in particular to a vehicle feature recognition device based on public safety video images in the Skynet project. Background technique [0002] "Skynet project" refers to a video surveillance system that uses image acquisition, transmission, control, display and other equipment and control software to monitor and record information in fixed areas in order to meet the needs of urban security prevention and control and urban management. The Skynet project transmits the images of all video monitoring points in a certain area to the monitoring center through the network, classifies image information such as criminal cases and public security cases, and provides reliable image data for preventing crimes and sudden public security disasters. [0003] In the existing vehicle feature recognition electronic devices, some need to set up infrared induction light curtains to sense the vehicle arrival i...

AI Technical Summary

Problems solved by technology

However, the above-mentioned devices still have certain limitations in practical application, and the adaptability, stability and reliability still need to be further improved and perfected, and many problems have not been effectively solved yet. These problems include: (1) Vehicle changes in scale, position, and orientation

(2) The attitude correction problem of the vehicle in the image

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